Drifting Continents

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Vocabulary

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Pangaea-All lands,ot that all continents were together

Continental Drift-moving of the continents

Fossil- a trace of an ancient

Outline

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Intro

• Africa and South America look like jigsaw pieces

Theory of Continental Drift

• 1910 Alfred Wegener
  • Hypothesis was that the continents were once joined together

300 million years ago

• Evidence from Landforms
  • Mountains
    • Lined up South Africa with Argentina
  • Coalfields
    • Lined up European coalfields with North America's
• Evidence from Fossils
  • found common dinosaur fossils &plant fossils
• Evidence from Climate
  • current places in the world had opposite climate
  • hot places had rock scratches which indicated that glaciers were once there

Scientists reject Wegener's theory

• Explained about mountains
  • lacked evidence